The Interactions between a Low Molecular Weight Protease Inhibitor of Bronchial Mucus and Chymotrypsin-like Cationic Proteins of Granulocytes

Abstract
The proteolytic activity of the chymotrypsin-like cationic proteins of human granulocytes is inhibited by complex formation with the acid-stable low molecular weight protease inhibitor of human bronchial mucus (Ki = 1.0 .times. 10-7 M). The molar combining ratio is 1:1.